#include <iostream>
#include <forward_list>
#include "global.hpp"


int main()
{
    std::forward_list<int> l;
    l.push_front(1);
    l.push_front(2);
    l.push_front(3);

    auto ite = l.begin();
    ite++;
    std::cout<<*ite<<std::endl;
    // l.insert_after();
    // l.before_begin();//头结点
    //l.erase_after(ite);//删除
    Print(l);
    return 0;
}